Abstract
Discrete tracks approximately 1- mu m wide etched on the surface of a Co-alloy disk were used to determine the readback response of thin-film recording heads at various locations across the width of a head. The effective head width for readback decreases as the recording density increases and shows several small maxima for densities greater than 600 flux-reversals/mm. The location of these maxima is determined by the thickness of the pole tips. The shape of the frequency dependence of the readback amplitude (rolloff curve) changes considerably near the edges of the pole tips. A qualitative description of this behavior is presented using calculations from a three-dimensional model. The influence of edge effects due to unequal pole-tip widths is observed when rolloff curves on conventional media are compared with data acquired using a narrow discrete track. >
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
